Hamburger Steak with Onions and Gravy

Ingredients (13)

• + 1 pound ground beef add to pantry
• ✓ 1 egg
• + ¼ cup bread crumbs add to pantry
• + ⅛ teaspoon ground black pepper add to pantry
• + ½ teaspoon seasoned salt add to pantry
• + ½ teaspoon onion powder add to pantry
• ✓ ½ teaspoon garlic powder
• + 1 teaspoon Worcestershire sauce add to pantry
• + 1 tablespoon vegetable oil add to pantry
• + 1 cup thinly sliced onion add to pantry
• ✓ 2 tablespoons all-purpose flour
• + 1 cup beef broth add to pantry
• + 1 tablespoon cooking sherry add to pantry